| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Xenarthra ("Anteaters, Armadillos, and Tree Sloths") | 1 | 2 | 0 |
| Xenichthys | 0 | 2 | 0 |
| Xenicus Gray & GR 1855 (New Zealand Wrens) | 0 | 0 | 0 |
| Xenicus lyalli | 0 | 2 | 0 |
| Eleotridae (sleepers) | 0 | 4 | 0 |
| Xenistius | 0 | 2 | 0 |
| Xenobalistes | 0 | 2 | 0 |
| Xenochrophis Günther 1864 | 0 | 1 | 0 |
| Xenocopsychus ansorgei Hartert 1907 | 0 | 2 | 0 |
| Euplerinae | 1 | 0 | 0 |
| Xenocypris | 0 | 2 | 0 |
| Xenotilapia | 0 | 2 | 0 |
| Xenus Kaup 1829 | 1 | 0 | 0 |
| Xenus cinereus (Güldenstädt 1775) (Terek Sandpiper) | 0 | 2 | 0 |
| Xerinae Osborn 1910 | 1 | 0 | 0 |
